Block Diagram - Kenwood NX-740H Service Manual

BLOCK DIAGRAM

DISPLAY UNIT X54-389 TX/RX UNIT XC1-001
POWER
5
KMO1
PLL_LE
S A <B
PLL_CLK
PLL_DATA
PLL_PDN2
KMO2
CH PLL_UL
C>
UP
KMO3
C
VOL
VOL
H
UP DN
KMI1 KMI2 KMI3
D37 IC1
HDSP-521A TCA62746AFNAG
LEDI
4 LED LED LECE
NUMERIC DRIVE
OUT 0-15 LECL
DISPLAY R LELM
LEDM
5MS 5MS
LEDM SW
MBL
Q5
MIC
SB
2SC3928A
ME
GND
PTT(TXD)
PTT/TXD
ME
HOOK/RXD
MIC
POWER
HOOK(RXD)
MKEY
DM
SB
MIC
5MS
SP+
Q6
SP-
2SC3928A
LEDM
MBL
LERE
SW
BLULED
LELH
SP+
3 LECL
D22
SP-
LECE
B30-2321-05
LEDI
Q9
REDLED
SP 2SC3928A
5MS GRNLED
SW LED
BLULED
KMO1
KMO2
KMO3
MLED
KMI1
Q1
KMI2
RT1N441U KMI3
SW
GRNLED
Q7
RT1P141U
D23
SW
E58-0536-05
B30-2151-05
LED
LED
SW
Q8
2
RT1P141U
Q2 SW
REDLED
RT1N441U
Q3 D1-15
KRA225S B30-2282-05
SW KEY BACK LIGHT
SB
SW
MBL
1 Q4
KRC102S-P
A B
Fin
AMP
Q2
2SC5636
5C
IC2
AK1541
LV/C
LOOP
Filter
PLL
IC
33C
5C 9CL
RIPPLE
9C
FILTER
Q10
16.8MHz
KTC4075E(Y,GR)
X1
IC3 Q3
16.8MHz L77-3128-05
BD7542FVM SSM3J05FU-F
MOD1
ASSIST
ASSIST
ASTC
FREQ
Filter FILTER
TCXO
33MS
ATSTSW SW
Q4
2SK1824-A
IC709
IC706
CMX7141
NJM2100V-
19.2MHz
MOD1
ZB
33BA/33BD
MOD2
MIC/MO BASEBAND
D IC
AMP
CML_SSOUT
AGC
AGC
CML_EPSCL
DET
K
CML_CSN
Q700
CML_EPSI
D712 CML_SCLK
2SC4919
CML_RDATA
CML_CDATA
MC2858
M1MUTE CML_IRQN
CML_EPSO
D713
LSDI
LSDO
1SS372F
PTT
HSDI
HSDO
LEVEL TXD
APCC_TVC
XIN
BUCNT1
SHIFT
ASTC
MKEY
3.3 5 FREQ
BUCNT2
IC724
TC7WT126FU-F
5M
LEVEL
HOOK/RXD
SHIFT
MKEYI
5 3.3
IC725
TC7WT126FU-F
33MD
IC702
D704,706,707,709,711 IC700
J700 PCA9555AHF
DA221 TC7WBD125AFK
F1CNT
I2CCK
FNC5 SCL LEVEL
SHIFT I2CDT
FNC6 SDA
5V/3.3V
I/O
5M
Expander
F1CNT LEVEL
SURGE F2CNT SHIFT
FNC1
5M 5V/3.3V
PROTECT F34CNT
FNC3
FNC1
LEVEL
FNC2
SHIFT
FNC3
GND 5V/3.3V
FNC4
FNC2
SB
IGN FNC4
RS232C
SP2 Q703 Q702
DRIVER
5MS
DETO
MTM981400BF LTC014TEBFS8
DATAI F2CNT
IC704
5MS HORN
SW
ALERT HORN ADM202EARNZ
HR1
SW
HR2
$R763 5V_TXD2
IC502 IC718
XC6221B332N-G MM1856A33N
$R793
33MD_CLOCK
AVR AVR
33MS 33MD
5M
3.3V 3.3V
RXD2
SBC
C
(No.RA010<Rev.001>) 2-9
Q5
Q11
MCH3914(7)-H 2SC5108(Y)F 2SC5108(Y)F
RX
BUFF
VCO
Q9
KRX102U
Q6
9CL
DCS SSM3J15FS
SW
5MS
W
TX/RX
16.8MHz Tripler
TX
KTC4080E-P
VCO
Q7
MCH3914(7)-H
50.4MHz(2nd Local)
IC501
AK2365A
MOD2
IF
SQIN
DEMODULATOR
RSSI
FM_SCLK
FM_SDATA
FM_CSN
FM_RSTN
IC500
FM_PDN
BU7465HF
DC level
LSDO adjust 33MS
Buffer
LEDI EEP_DATAO
33MD
LECE EEP_SCLK E
LECL EEP_CS
ROM
EEP_WP
LELH
LERE BUCNT1
ACR_SW BUCNT2
EVOL_DACCE SBC
33MA
EVOL_SCLK MKEYO
EVOL_DATA 9RC
BEEP ASTSW
FNC_1 FM_RSTN
LSDO FM_SCLK
HSDO FM_CSN
3CC FM_PDN
5CC TXD
MCU
PLL_DATA TXRX
PLL_CE HORN
PLL_CLK CMLEPSO IC714
PLL_PDN2 LEDM SMT32F405ZGT6
PA MBL
AMP_SW 33BC
9TC MIC1MUTE
KMO3 MIC2MUTE
KMO2 SP_MUTE
KMO1 SWO
IC703
TXD2 SRST
TC7WH126FU-F CML_CSN BLULED
CML_SCLK GRNLED
TXDO
CML CDATA REDLED
RTSO
5M
PCBVER KMI1
CML_SSPUT
F34CNT IFDET
KMI2 CML_EPSCL
DISC_DC
RXDO KMI3 K
RESET
RXD2 CML_EPSI
CTSO
LSDI
CML_RDATA SIM1
33MD
HSDI EEP_DATAI
SIM2
IC705
TEMP1
MKEY1 IGNIN
IC701
TC7SET08FU-F TEMP2
PLL_UL POWERKEY
TC7WH126FU-F
SQIN
PLL BATT_INT
LEVEL
TXD2
RSSI
HOOK CML_IRQ
5V_TXD2 SHIFT
BATT RXD
5V/3.3V 5M
CVIN
IC710
IC726
XC6221B332N-G
XC6221B332N-G
AVR AVR
5M 33BD 33C 5M
5M
3.3V 3.3V
BATT_INT
33CC
33BC
D E
2-9 (No.RA010<Rev.001>)
IC300 TX
Q12 Q300
9T 9R
RD00HVS1-T113 RA60H1317M1A 136-174MHz
COUPPLER
COM TX/RX POWER
DRIVE
POWER
AMP SW AMP MODULE
DET
D16,17
RN142S
VGG
9C
RX 1st LOCAL Power
185.95-223.95MHz RECTIFIER
Q500
APC
CONTROL
9T
Q503
Q501 XF500 Q506
KTC4075E(Y,GR) L71-0684-05 3SK318 3SK318
IF
MCF
MIX BPF LNA BPF
AMP 49.95MHz
33MS 9R 9R
RF BPF RF BPF
TUNE TUNE
D502,503
33MS
1SV305F
TVC
IC706
5C
NJM2100V-ZB
3C
EVOL
Audio
HSD
AMP/
SPMUTE
Buffer IC715
AK2331
2 IC716
P
EVOL_SCLK
33C
M95512-RDW6TP
EVOL_DATA
EVOL_DACCE
EEP_SCLK
EEP_DATAO
EEP_CS
EEP_DATAI
EEP_WP
9C
I2CDT
I2CCK
/INT15P
Q717
FM_SDAT
Q710 TA4809BF
A
2SB1694
SWDIO
AVR
SW
9T
9V
Q708
LTC014EEBFS8
SW
9TC
Q709
2SB1694
SW
9R
19.2MHz
Q707 5M
LTC014EEBFS8
SW
9RC
IC723
5C
XC6120N302N-G
RESET
RESET 33M
33MA
LTC014EEBFS8
Q706
Q717 IC720
LTC044TUBFS8
XC6221B332N-G
SSM3J05FU-F
SW
IGNIN IGN
AVR
33BA
SW 5M 5MS
3.3V
Q713
LTC044TUBFS8
SW Q723
SW
FB LTC014EEBFS8
LTC014EEBFS8
OVER VOLTAGE DET
33BC
F
D305,306 : L407CDB
D309,D310 :
ANT
LPF ANT
SW
D307,308
RB706F-40
APC
IC301
HA17358BFEL-E
BEF
IC503
HA17358BFEL-E
D504,505
1SV305F
9C
DC
AMP
TVC
APCC_TVC
Q714
5C SB
SSM3K05FU SP+
SW
IC719
LA4600
AF
AMP
SP2
EXT SP
SP-
SW
Q715
SW
SSM3K05FU
Q720
PA
LTC014EEBFS8
AMPSW
SB FB
Q719
2SJ645
SW
+B
GND
Q718
KTC4075E(Y,GR)
SW
SBC
IC722
BD4740G
BATT_INT INT
IC721
TA7805F-NQ
AVR
SW
5V
Q716
SSM3J05FU-F
SW
Q711
5CC
SW
Q721
SSM3J05FU-F
SW
Q722
SBC
G